--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usbengines/usbwatcher/src/cusbindicatorhandler.cpp Tue Aug 31 16:13:57 2010 +0300
@@ -0,0 +1,209 @@
+/*
+* Copyright (c) 2009-2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: This implements TUsbIndicatorHandler class.
+*
+*/
+
+#include <e32std.h>
+#include <hbindicatorsymbian.h>
+#include <hbsymbianvariant.h>
+#include <usbman.h>
+#include "debug.h"
+#include "cusbindicatorhandler.h"
+
+
+// ---------------------------------------------------------------------------
+// C++ Constructor
+// ---------------------------------------------------------------------------
+//
+
+CUsbIndicatorHandler::CUsbIndicatorHandler()
+ {
+ // No implementation required
+ }
+
+CUsbIndicatorHandler::~CUsbIndicatorHandler()
+ {
+ delete iSymbianIndicator;
+
+ }
+
+CUsbIndicatorHandler* CUsbIndicatorHandler::NewLC()
+ {
+ CUsbIndicatorHandler* self = new (ELeave) CUsbIndicatorHandler();
+ CleanupStack::PushL(self);
+ self->ConstructL();
+ return self;
+ }
+
+CUsbIndicatorHandler* CUsbIndicatorHandler::NewL()
+ {
+ CUsbIndicatorHandler* self = CUsbIndicatorHandler::NewLC();
+ CleanupStack::Pop(); // self;
+ return self;
+ }
+
+void CUsbIndicatorHandler::ConstructL()
+ {
+ LOG_FUNC
+
+ iDevStateB4Suspend = EUsbDeviceStateUndefined;
+ iSymbianIndicator = CHbIndicatorSymbian::NewL();
+ }
+
+// ---------------------------------------------------------------------------
+// Change USB Indicator
+// ---------------------------------------------------------------------------
+//
+void CUsbIndicatorHandler::HandleDeviceStateChangeL( TUsbDeviceState aStateOld,
+ TUsbDeviceState aStateNew, TInt aPersonality )
+ {
+ LOG_FUNC
+
+ LOG2( "USB device state changed: %d ==> %d", aStateOld, aStateNew );
+
+ if ( EUsbDeviceStateAddress == aStateNew ) // Entering addressed state
+ {
+ // going down configured -> addressed
+ if( ( EUsbDeviceStateConfigured == aStateOld ) ||
+ ( ( EUsbDeviceStateSuspended == aStateOld ) &&
+ ( EUsbDeviceStateConfigured == iDevStateB4Suspend ) ) )
+ {
+ ShowUsbConnectedIndicatorL( EFalse, aPersonality );
+ }
+
+ // connecting indicator will be shown when addressed state is entered going up or down
+ // note that when disconnecting the cable (no need to show connecting indicator)
+ // the state change is CONFIGURED => SUSPENDED => POWERED => UNDEFINED
+ // filter out case of addressed -> suspended -> addressed
+ if ( ( EUsbDeviceStateSuspended != aStateOld ) ||
+ ( EUsbDeviceStateAddress != iDevStateB4Suspend) )
+ {
+ ShowUsbAddressedIndicator( ETrue );
+ }
+ }
+
+ else if ( EUsbDeviceStateConfigured == aStateNew ) // Entering configured state
+ {
+ // filter out case of configed -> suspended -> configed
+ if ( ( EUsbDeviceStateSuspended != aStateOld ) ||
+ ( EUsbDeviceStateConfigured != iDevStateB4Suspend) )
+ {
+ ShowUsbAddressedIndicator( EFalse );
+ ShowUsbConnectedIndicatorL( ETrue, aPersonality );
+ }
+ }
+
+ else if ( EUsbDeviceStateUndefined == aStateNew ) // Entering undefined
+ {
+ ShowUsbAddressedIndicator( EFalse );
+ ShowUsbConnectedIndicatorL( EFalse, aPersonality );
+ }
+
+
+ else if ( EUsbDeviceStateSuspended == aStateNew )
+ // If current state is suspend, we do not change the indicator, but save
+ // the previous state
+ {
+ iDevStateB4Suspend = aStateOld;
+ }
+ else // New device state is not configured, nor suspended, nor addressed
+ {
+ ShowUsbConnectedIndicatorL( EFalse, aPersonality );
+ }
+
+ }
+
+// ---------------------------------------------------------------------------
+// Show USB Indicator
+// ---------------------------------------------------------------------------
+//
+void CUsbIndicatorHandler::ShowUsbConnectedIndicatorL( TBool aActivate, TInt aPersonality )
+ {
+ LOG_FUNC
+ TBool success = EFalse;
+ _LIT(KUsbIndicator, "com.nokia.hb.indicator.usb.device.connected/1.0");
+
+ if (aActivate)
+ {
+ RUsb usbman;
+ User::LeaveIfError(usbman.Connect());
+ CleanupClosePushL(usbman);
+ HBufC* description = NULL;
+ User::LeaveIfError(usbman.GetDescription(aPersonality,
+ description));
+ CleanupStack::PopAndDestroy(&usbman);
+ CleanupStack::PushL(description);
+ CHbSymbianVariant* parameters = CHbSymbianVariant::NewL(description, CHbSymbianVariant::EDes);
+ CleanupStack::PopAndDestroy(description);
+ success = iSymbianIndicator->Activate(KUsbIndicator, parameters);
+ LOG1( "calling CHbIndicatorSymbian::Activate(), returned %d", success);
+ if (!success)
+ {
+ TInt indicatorerror = iSymbianIndicator->Error();
+ LOG1( "activating the indicator failed with %d", indicatorerror);
+ }
+ else
+ {
+ iConnectedIndicatorActive = ETrue;
+ }
+ delete parameters;
+ }
+ else if (iConnectedIndicatorActive)
+ {
+ success = iSymbianIndicator->Deactivate(KUsbIndicator);
+ LOG1( "calling CHbIndicatorSymbian::Deactivate(), returned %d", success);
+ if (success)
+ {
+ iConnectedIndicatorActive = EFalse;
+ }
+ LOG( "calling CHbIndicatorSymbian::Deactivate()");
+ }
+
+ }
+
+void CUsbIndicatorHandler::ShowUsbAddressedIndicator( TBool aActivate )
+ {
+ LOG_FUNC
+ TBool success = EFalse;
+ _LIT(KUsbIndicator, "com.nokia.hb.indicator.usb.device.inprogress/1.0");
+ if (aActivate)
+ {
+ success = iSymbianIndicator->Activate(KUsbIndicator);
+ LOG1( "calling CHbIndicatorSymbian::Activate(), returned %d", success);
+ if (!success)
+ {
+ TInt indicatorerror = iSymbianIndicator->Error();
+ LOG1( "activating the indicator failed with %d", indicatorerror);
+ }
+ else
+ {
+ iAddressedIndicatorActive = ETrue;
+ }
+ }
+ else if (iAddressedIndicatorActive)
+ {
+ success = iSymbianIndicator->Deactivate(KUsbIndicator);
+ LOG1( "calling CHbIndicatorSymbian::Deactivate(), returned %d", success);
+ if (success)
+ {
+ iAddressedIndicatorActive = EFalse;
+ }
+ LOG( "calling CHbIndicatorSymbian::Deactivate()");
+ }
+ }
+
+
+
+// End of file